I understand what your saying!! I have been there to. I find that the more I experiment with products the more time I will save in the future because I will find one product that is really good! The michelin stuff that I mentioned above works well. basically you wash the brake dust with the hose. No towels no scrubbing etc... so 10min vs 2 min add that up over 40 years of car washing!! But to each their own I guess?